Commit 1c999af5 authored by Alexander Stein's avatar Alexander Stein Committed by Guenter Roeck
Browse files

hwmon: (iio_hwmon) use dev_err_probe 



Instead of just returning an error code, add an error message as well.
While at it, simplify the code and use a common return path.
Upon deferral this also nicely lists the following message in
/sys/kernel/debug/devices_deferred:
adc     iio_hwmon: Failed to get channels

Signed-off-by: default avatarAlexander Stein <alexander.stein@ew.tq-group.com>
Link: https://lore.kernel.org/r/20230131103359.625081-1-alexander.stein@ew.tq-group.com


Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent e1983220

drivers/hwmon/iio_hwmon.c

+5 −3
Original line number Diff line number Diff line
@@ -77,9 +77,11 @@ static int iio_hwmon_probe(struct platform_device *pdev) 


	channels = devm_iio_channel_get_all(dev);

	if (IS_ERR(channels)) {

		if (PTR_ERR(channels) == -ENODEV)

			return -EPROBE_DEFER;

		return PTR_ERR(channels);

		ret = PTR_ERR(channels);

		if (ret == -ENODEV)

			ret = -EPROBE_DEFER;

		return dev_err_probe(dev, ret,

				     "Failed to get channels\n");

	}



	st = devm_kzalloc(dev, sizeof(*st), GFP_KERNEL);